Drug metabolism and disposition: the biological fate of chemicals, 14(2), 267-270 (1986-03-01)
The metabolic transformation of the bronchospasmolytic agent doxophylline (2-(7'-theophyllinemethyl)-1,3-dioxolane) was studied in vitro with phenobarbital-induced rat liver microsomal fraction containing the NADPH-generating system. Doxophylline was poorly metabolized as 95% of the recovered material was parent compound. The major metabolite resulted:
Archives internationales de pharmacodynamie et de therapie, 253(2), 301-314 (1981-10-01)
A study has been made of the bronchospasmolytic actions of theophylline and some ot its N-7-substituted derivatives administered by i.v infusion in anaesthetized guinea pigs, in which experimental bronchial asthma was induced by i.v. administration of histamine, 5-hydroxytryptamine and bradykinin.
International journal of tissue reactions, 14(1), 31-36 (1992-01-01)
It is assumed that theophylline (THEO) and its xanthinic derivatives inhibit lung phosphodiesterase (PDE) and block adenosine receptors in the induction of bronchodilatation. Since the theophyllinic compound ambroxol-theophylline-7-acetic acid (ATA) has been shown in vivo to be a sound bronchodilator
In an open study, 50 patients suffering from chronic obstructive pulmonary disease in an acute infectious phase were treated with ambroxol theophyllinacetate. The drug was given orally in a dosage of 100 mg BID for ten days. Viscosimetric data showed
Gas-liquid chromatographic determination of acephylline in urine.
J Zuidema et al.
Journal of chromatography, 182(3-4), 445-447 (1980-06-13)
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